Telescope Celestron AstroMaster 90EQ

AstroMaster 90EQ - General Features * Quick and easy no-tool setup * Permanently mounted StarPointer * Erect image optics - Ideal for terrestrial and astronomical use * Quick release dovetail attachment - no tool setup * German Equatorial mount with Setting circles - to accurately locate and track sky objects * Rugged pre-assembled tripod with 1.25" steel tube legs - Provides a rigid and stable platform * All coated glass optics for clear, crisp images * Deluxe accessory tray for convenient storage of accessories * " The Sky® " Level 1 planetarium software with 10, 000 object database and enhanced images Optical Design : Refractor Aperture : 90 mm ( 3.54 in) Focal Length : 1000 mm ( 39.37 in) Focal Ratio : 11.11 Eyepiece 1 : 20 mm ( 0.79 in) Magnification 1 : 50 x Eyepiece 2 : 10 mm ( 0.39 in) Magnification 2 : 100 x Mount : CG-3 Equatorial Optical Coatings : Multi Coated Weight : 27 lbs ( 12.25 kg) Finderscope : Built-on StarPointer Tube Attachment : Dovetail Bar Star Diagonal : Erect Image Diagonal - 1.25" Tripod : 1.25" steel tube legs CD ROM : The Sky L1 Highest Useful Magnification : 213 x Limiting Stellar Magnitude : 12.3 Resolution ( Rayleigh) : 1.55 arcsec Resolution ( Dawes) : 1.29 arcsec Light Gathering Power : 165 x Angular Field of View : 1 ° Linear Field of View ( @ 1000 yds) : 53 ft ( 16.15 m) Optical Tube Length : 36 in ( 914.4 mm)